'Amazing how otherwise unimaginative people instantly become creative to avoid doing what they don’t like, necessity indeed the mother of invention'

This part got me. So, true...
In this case, sadly, you would have to get a divorce. For the sake of your mental health. I mean, it's so obvious, You like sex, she doesn't.

Humans are indeed insatiable. I wish you all the best anyways, it's so heartbreaking.